package com.heng.atomics;


import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.LongAccumulator;
import java.util.concurrent.atomic.LongAdder;

class ClickNumber{//资源类
    int number = 0;
    public synchronized void clickBySynchronized(){
        number++;
    }

    AtomicLong atomicLong = new AtomicLong(0);
    public void clickByAtomicLong(){
        atomicLong.getAndIncrement();
    }

    LongAdder longAdder = new LongAdder();
    public void clickByLongAdder() {
        longAdder.increment();
    }

    LongAccumulator longAccumulator = new LongAccumulator((x,y)->x + y,0);
    public void clickByLongAccumulator() {
        longAccumulator.accumulate(1);
    }

}
public class AccumulatorCompareDemo8 {
    public static final int _1w = 10000;
    public static final int threadNumber =50;
    public static void main(String[] args) throws InterruptedException {

        ClickNumber clickNumber = new ClickNumber();
        long l = System.currentTimeMillis();
        long endTime;
        long startTime;

        CountDownLatch countDownLatch1 = new CountDownLatch(threadNumber);
        CountDownLatch countDownLatch2 = new CountDownLatch(threadNumber);
        CountDownLatch countDownLatch3 = new CountDownLatch(threadNumber);
        CountDownLatch countDownLatch4 = new CountDownLatch(threadNumber);

        startTime = System.currentTimeMillis();
        for (int i = 1; i <= threadNumber; i++) {
            new Thread(()->{
                try {
                    for (int j = 0; j < 100 * _1w; j++) {
                        clickNumber.clickBySynchronized();
                    }
                }finally {
                    countDownLatch1.countDown();
                }
            },String.valueOf(i)).start();
        }
        countDownLatch1.await();
        endTime = System.currentTimeMillis();
        System.out.println("--costTime:" + (endTime - startTime) + "毫秒" + "clickBySynchronized :"+clickNumber.number);


        startTime = System.currentTimeMillis();
        for (int i = 1; i <= threadNumber; i++) {
            new Thread(()->{
                try {
                    for (int j = 0; j < 100 * _1w; j++) {
                        clickNumber.clickByAtomicLong();
                    }
                }finally {
                    countDownLatch2.countDown();
                }
            },String.valueOf(i)).start();
        }
        countDownLatch2.await();
        endTime = System.currentTimeMillis();
        System.out.println("--costTime:" + (endTime - startTime) + "毫秒" + "clickByAtomicLong :"+clickNumber.atomicLong.get());


        startTime = System.currentTimeMillis();
        for (int i = 1; i <= threadNumber; i++) {
            new Thread(()->{
                try {
                    for (int j = 0; j < 100 * _1w; j++) {
                        clickNumber.clickByLongAdder();
                    }
                }finally {
                    countDownLatch3.countDown();
                }
            },String.valueOf(i)).start();
        }
        countDownLatch3.await();
        endTime = System.currentTimeMillis();
        System.out.println("--costTime:" + (endTime - startTime) + "毫秒" + "clickByLongAdder :"+clickNumber.longAdder.sum());


        startTime = System.currentTimeMillis();
        for (int i = 1; i <= threadNumber; i++) {
            new Thread(()->{
                try {
                    for (int j = 0; j < 100 * _1w; j++) {
                        clickNumber.clickByLongAccumulator();
                    }
                }finally {
                    countDownLatch4.countDown();
                }
            },String.valueOf(i)).start();
        }
        countDownLatch4.await();
        endTime = System.currentTimeMillis();
        System.out.println("--costTime:" + (endTime - startTime) + "毫秒" + "clickByLongAccumulator :"+clickNumber.longAdder.sum());
    }
}
